Stormin, the lugs are for the angle brace that holds the top of the blade if you look at the pic of my D7 you can see one there on the left
his blade can angle so if it was sitting straight the braces would be in the middle lug on each side if angled they would be in the front
lug on one side and back lug on the other
Doug when I fire my dozer up the grandkids come running towards it LOL they love to ride on it

what kind of a budget are you working with on buying a dozer ? an old machine like I have will do a lot of work but not as fast as a newer
one mine is a 1947 and I baby it as much as I can. buying a 40's 50's or even a 60 or 70's dozer can be a cheaper first investment but can
cost more in the long run if it has a major failure of any type as the price u buy one for is the most it is worth ever no matter how many
dollars you spend fixing it up, but the same can be said for a newer one also I guess LOL. if time getting the job done isn't a factor for you
a mini excavator with a thumb may be a better deal as the have a better resale value than a old dozer. but they cost more up front too.
a D3 size dozer may good if your not in a hurry. the older cats have a great parts supply which makes them a little better than say an
fiat allis or international as parts are sometimes hard to find for them. look around find something you think you like let us know what
it is and we will try and see if there is any of the normal things wrong that can be seen on a walk around, but never buy one that you
cant start drive and best if u can work it a little say just push some dirt as this will help tell more about the drive train and engine

hey Doug if you can tell us what machine you are looking at and or what kind and size trees you are wanting to clear we will try to
help you more. when talking about track life or wear 50% would mean that half of the track life is used up. when a dozer is inspected
by a dealer and they say 70% they mean 70% is used up not left. most individuals will say 70% meaning they have 70% left which
can be confussing. track wear is measured over 5 pins with track tight and a measurement of the rail height. diff track types have
different measurements so you have to know which machine and which track it has to get the measurements from a dealer
are you cornfused yet LOL just ask and we will try to help you all we can if I can get some pictures that would help I will try

Pic from the cab of a brand new Volvo 220 excavator
After pushing the dirt back in the hole.
I would post one of the hole but it had
people in it and I didn’t get their permission to put their pic up sorry
I will try in next couple weeks to get some more pic’s and a few vid of stuff working